Lifting camera module applying small-tooth-difference involute planetary reducer

Abstract

The invention provides a lifting camera module applying a small-tooth-difference involute planetary reducer. The lifting camera module comprises a supporting frame, and the supporting frame is provided with a camera module, a lifting assembly matched with the camera module, a motor for driving the lifting assembly and the small-tooth-difference involute planetary reducer. The small-tooth-difference involute planetary reducer comprises an eccentric shaft connected with the motor, at least one involute external gear arranged on the eccentric shaft and an inner gear ring matched with the involuteexternal gear, wherein the involute external gear is connected with the lifting assembly through an output shaft, and the motor can drive the lifting assembly to move through the small-tooth-difference involute planetary reducer so that the camera module can ascend and descend. The lifting camera module is simple and compact in structure, diversified in form, wide in application range, small in size, convenient to process and manufacture, large in gear ratio range and transmission power, capable of reducing the manufacturing cost and prolonging the service life, high in stability and reliability, and capable of improving the process yield and the mass production capacity.

Description

technical field [0001] The present disclosure relates to the technical field of camera lifting, in particular to a lifting camera module using an involute planetary reducer with a small tooth difference. Background technique [0002] With the rapid development of science and technology, 3C electronic products have been widely used in people's work and life, especially in mobile terminal electronic devices such as mobile phones and tablet computers. 3C electronic products are computers, communications and consumer electronics products. (Consumer Electronic) The abbreviation of the three types of electronic products. In order to cater to people's consumption experience, high screen-to-body ratio or full-screen technology has become the main development trend of these electronic devices. The high screen-to-body ratio or full-screen technology has outstanding advantages such as atmosphere and beauty, which are very in line with people's consumption experience. The screen requir...

AI Technical Summary

Problems solved by technology

However, because the technology of integrated camera under the screen is far from mature, the camera cannot penetrate the display screen to take pictures, so the front camera must be designed in an area other than the display screen. In order to achieve a full screen, the camera is often hidden on the back of the display screen. When taking pictures, the camera is extended, that is, it is designed as a camera that can be lifted. As an effective way to realize a full screen, the technology of lifting the camera has formed a new wave in recent years.

[0003] In the prior art, the lifting camera mainly includes manual pressing pop-up type, manual rotating type, and variable speed motor automatic type. For gear sets or worm gears with complex structures, there are many parts, the design volume is large, and the manufacturing accuracy is very high. It is necessary to ensure that the small parts are manufactured qualified and at the same time ensure that the whole mechanism can bear high torque and high speed, resulting in manufacturing costs. High, low life, easy to wear, poor reliability, etc., resulting in low process yield of the transmission, difficult to mass production, etc., limiting the application and development of the lifting camera

Images